Capping machine



Jan. 2, 1923. 1,440,983

C. HAMMER CAPP x NG MACHI NE.

Fl LED JUNE 25, I 920.

3 SHEETS'SHEET I C/mfis Hammer Jan. 2, 1923.

- 1,44,983 C HAMMER CAPF' l NG MACHINE F1 LED JUNE 25, 1920.

3 SHEETS'SHEET 2 1 125 til H0 H1 01 Jan. 2, 1923. 1,440,983

C. HAMMER. CAPFXNG MACHINE. Fl LED JUNE 25, I920v 3 SHEETSSHEET 3 Egg.

3m ve n foe CfiarZesHammer 931d 2715 C1 Il'oz'ne- Patented Jan. 2, 1923.

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CHARLES HAMMER, OF QUEENS, YORK, ASSIGNOR TO AMERICAN METAL CAP COMPANY,OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

CAPJPING MACHINE.

Application filed June 25,

To all whom it may concern.

Be it known that I, CHARLES HAMMER, a citizen of the United States,residin at Queens, in the county of Queens and tate of New York, haveinvented certain new and useful Improvements in Capping Machines, ofwhich the following is a specification.

This invention relates to cap sealing machines adapted to seal a thinsheet metal cap or closure on a bottle or similar container,

\ which latter is provided with a sealing flange some distance below theupper edge.

The object of the present invention is the provision of an improved capsealing machine, simple in construction and eflicient in operation.

An object of the present invention is the provision of an improvedmachine in which one member will pass down around the cap to its lowerportion and is provided with a spring member to engage the margin of thecap at the top; while a bending member is provided that will cause thelower extended edge or extension of the cap to be bent inward beneaththe bottle flange, while the first two members are exerting downwardpressure on the cap.

A. further object of this invention is the provision-of means forcausing the bending member to be rotated while pressing inwardly, andwhich inward movement is controlled by the recession of the springpressed member that engages the top of the container.

In the accompanying drawings showing embodiments of my invention, Fig. lis an elevation, partly'in section of a complete machine.

Fig. 2 is a vertical section through the sealing members, showing theupper part of a container.

Fig. 3 is a similar view with the parts in the final sealing position.

Fig. 4c is a cross section on the line 4-4 of Fig. 2.

Fig. 5 shows a modified forn of sealing means in vertical section.

Figs. 6 and 7 are similar views in advanced positions of the parts.

Fig. 8 is a detailof the parts shown in Fig. 5.

Fig. 9 shows the closure. 1

As illustrated in Figs. 1-4, the sealing machine comprises a frame orstandard 1 having a bracket 2 provided with a support 3 1920. Serial No.391,625.

for the container 4:. In mechanism of this character it is usual tocause the container support to be forced upwardly, to bring the closureon the top of the container into engagement with the sealing member. Inthe present machine this can be done by a foot treadle 5 and suitableconnecting means.

At the top of the standard is a supporting arm- 6 that carries a head 7for the sealing means. This head supports a stem 8 extending downwardand which carries a sleeve 9 on its lowerend, connected with the stem byadisc 10. The sleeve is rigidly connected with the head and does notmove, and is of an inner diameter to pass down around the closure or cap11, shown in Fig. 9. The lower edge of the sleeve is provided with agroove or channel 12/ The closure comprises a body portion 13 having aflange or channel 14 on its lower end, that engages a channel portion 15on a sealing band 16. The closure is preferably provided with an innersealing disc 17 of compressible material. The bottle 4 is shown providedwith a. sealing flange 18, and the joint of the band and cap whenapplied to the bottle with the sealing disc in "the cap, will be locateda short distance above this flange when first applied, as indicated inFigs. 2 and 5.

Tn'the bore of the-sleeve 9 is arranged a plunger, comprising a disc 19and several stems 20 passing through suitable apertures in'the head disc10. These stems are connected above the head disc by a collar-21slidable on the stem 8. A coil spring 22 is placed in a socket 23 in thehead stem 8, and presses the plunger downwardly in the sleeve 9. Abearing ring 24 is located above the collar 21, and below a nut 25 onthe stem, and ball bearings 26 are between the upper face of the collarand the ring 24. This will permitrotation of the ring 24.

Means are further provided in this sealing machine to press the loweredge of the cap sealing band 16 inwardly beneath the flange 18 on thebottle, and which means in one form are caused totravel around thebottle relative "to the head member, the upward movement of the bottleinto the head sleeve compressing the plunger. On the head 7 is rotatablymounted a pulley 26', from which .depends a sleeve 27, that surroundsthe head sleeve 9 but is rotatable thereon. On this sleeve 27 aremounted a set of arms 28 on pivots 29, whereby the arms have their lowerends, that are provided with rolls 30, swing in to engage the cap bandand press it beneath the bottle flange, as shown in Fig.3, the arms beinnormally held outwardly by springs 31. cans are provided for causingthese arms to swing by the sliding of the spring plunger inthe headsleeve, and for this purpose the upper ends 32 of these arms 28 areextended inwardly through suitable openings 33 in the sleeve 27, toengage the bearing ring 24 carried by the spring pluner. g In theoperation of this mechanism, the bottle containing the closure is movedupward by the treadle, and the bottle top Wlll enter the sleeve 9 of thehead and engage the spring plunger. Further upward movement will causepressure on the bottle top by the spring plunger, and the lower channelend of the head sleeve 9 will engage the joint of the closure and pressit closed, preferably by'engagement with the flange on the bottle.

This will serve to compress the sealing discon top of the bottle, by thespring plunger. The recession of the spring plunger in the head sleevewill cause the bearing ring'24 to engage the bent ends 32 of thearms,,and

force them outwardly and so bring the rolls 30 inward to engage the band16, and bend it a ainst the lower wall of the bottle flange, see ig. 3.

It will be understood that the head sleeve 9, and the plunger 19 are notpermitted to rotate, but the sleeve 27 is rotated by the pulley 26. Thebearing'ring 24 is rotatable on the plunger member, by means of its ballbearings, and will partake of the movement around of the arms 28.

In Figs. 58 is shown a modification, comprising a sleeve with a springplunger therein, and bending arms carried by the sleeve, but which donot rotate around the container. In this form the head 35, carried bythe frame or arm 6 in a suitable manner, has a depending sleeve 36, witha grooved lower end or shoulder 37 for engagement with the cap at thejoint. The spring plunger slides in the sleeve, and comprises a disc -38with a stem 39, and a coil spring 40 between the disc and the head 35. Aset of arms 40 are carried on pivots 41, with their lower bent ends 42arranged to press the sealing band 16 in below the flange on the bottle.The; upper ends 43 of these arms pass through apertures 44 in the sleeveto engage the disc 38 of the-plungemwhen the latter is forced upward bythe advance of the bottle. Springs 45 retract the arms when free fromthe plunger. It 'willsbe understood that in the construction shown inFigs. l-4 the swinging arms carried by the sleeve 27 move-in afixed pathrelative to the plane of the sleeve lower end, and that this path doesnot change during the rotation of the sleeve that carries these arms. Itis the recession of the plunger relative to the main sleeve that causesthe arms to swing inwardly. The sleeve carrying the arms rotatesrelative to the main sleeve, but does not move axially of such sleeve.

main portion of the cap in close proximity thereto, audits lower portionor end has a grooved shoulder to engage the joint of the '80 cap andband wherebyto close such joint,

and also preferably to press this joint againstthe flange on the bottle.In connection therewith the plunger that slides in the said bore of thesleeve, is arranged to engage the cap at the marginal portion of itstop, "to force the top against the vbottle end and compress the sleevedisc to form a tight joint. 1 w 7 The method or process of sealing thecap, as set forth in the present application, is not claimed herein, butis claimed in Patent No. 1,353,801, granted to me June 21, 1920.Although I have described my invention in its preferred form, it is ,tobe'understood that I do not limit myself to the construction hereinshown and described, except insofar as defined in the .claims andembraced \and an annular bending member arranged to close inwardly onmovement of the plunger, whereby to bend the cap band inwardly under thecontainer flange, while the plunger exerts downward pressureon theclosure top.

2. In a machine for sealing a jointed band closure on a flangedcontainer, the combination of supporting means, a sleeve member providedwith ashoulder at the lower end portionand adapte'd'to pass down aroundthe closure to engage the band joint and force the. closure down on thecontainer, a-

spring plunger slid'able in the sleeve mem-" her to engage the closuretop at the marginal portion, and an annular bending member arranged foroperation by the plunger to close inwardly on recession of the plungerin the head, whereby to bend the cap band inwardly under the containerflange, while the plunger exerts downward pressure on the closure top.

reac es 3. In a machine for sealing a jointed band closure on a flangedcontainer, the combination of supporting means, a sleeve member providedwith a shoulder at the lower end having a downwardly facing channeltherein and adapted to pass down around the closure to engage the bandjoint and force the closure down on the container, a spring plungerslidable in the sleeve member to engage the closure top at the marginalportion, and an annular bending member arranged to close inwardly onmovement of the plunger, whereby to bend the cap band inwardly under thecontainer flange, while the plunger exerts downward pressure on theclosure top.

4. In a machine for sealing a jointed band closure on a flangedcontainer, the combination of supporting means, a sleeve member providedwith a shoulder at the lower end having a downwardly facing channeltherein and adapted to pass down around the closure to engage the bandjoint and force the closure down on the container, a spring plungerslidable in the sleeve member to engage the closure top at the marginalportion, a set-of arms pivotally supported to close under said sleevemember, and also arranged to be carried bodily around the said member tobend the cap end portion inwardly, means operatively connected with theplunger to cause the arms to swing inward during rotation of the armsfrom the recession of the plunger in the sleeve, and means for rotatingthe arms around the head.

5. A cap sealing machine, comprising a head, a sleeve rigidly dependingfrom the head, a plunger slidable in said sleeve, a collar slidableabove the sleeve and rigidly connected with said plunger, a spring toforce the plunger downwardly in the sleeve, a bearing ring rotatablymounted on said collar to be advanced therewith, a pulley rotatable onsaid head, a slotted supporting sleeve secured to said pulley andsurrounding the inner sleeve, a set of arms pivoted on said supportingsleeve to swing thereon and to be bodily rotated by the pulley aroundsaid inner sleeve, a roller on the lower end of each arm arranged tomove inward with the arm to engage the closure, said arms having theirupper ends projecting inwardly through the slotted sleeve for engagementwith said bearing ring on movement of the plunger and bearing ringrelative to the inner sleeve, whereby the' arms and rollers are swunginwardly during their rotation by the pulley.

6. A cap sealing machine comprising a head, a stem depending from thehead, an apertured disc on the stem, a sleeve depending from the disk. aplunger slidable in said sleeve, a collar slidable on the stem, rodspassing through the disc and rigidly con necting the collar with thesaid plunger, a spring to force the plunger downwardly in ley aroundsaid inner sleeve, a roller on the lower end of each arm arranged tomove inward to engage the closure, said arms having their upper endsprojecting inwardly through the slotted sleeve for engagement with saidbearing ring on movement of the plunger and bearing ring relative to theinner sleeve, whereby the arms and rollers are swung inwardly duringtheir rotation by the pulley.

7. in a cap sealng machine, the combination of supporting means, adepending member adapted to closely encircle the side walls of a cap, aspring-pressed plunger therein and in position to engage the top of thecap adjacent to the upper end of said depending member, and. a pluralityof swinging arms in position to be engaged by said spring-pressedplunger and operative to bend the lower edge of the cap inwardly on themovement of said spring-pressed plunger in one direction.

8. In a cap sealing machine, the combination of supporting means, adepending member adapted to closely encircle the side walls of a cap, aspring-pressed plunger therein and in position to engage the top of thecap adjacent to the upper end of said depending member, a plurality ofswinging arms in position to be engaged by said spring-pressed plungerand operative to bend the lower edge of the cap inwardly on the movementof said spring-pressed plunger in one direction, and means for rotatingsaid swinging arms.

9. n a cap sealing machine, the combination of supporting means, adepending member adapted to closely encircle the -side walls ofa cap, aspring-pressed plunger therein and in position to engage the top of thecap adjacent to. the upper end of said depending member, a seconddepending member enclosing said first depending member, and a pluralityof swinging arms carried by said last depending member in position to beengaged by said spring-pressed plunger and operative to bend the loweredge of the cap inwardly on the movement of said spring-pressed plungerin one direction.

10. In a cap sealing machine, the combination of supporting means, adepending member adapted to closely encircle the side walls of a cap, aspring-pressed plunger therein and in position to engage the top of thecap adjacent to the upper end of said depending member, a seconddepending member'enclosing said first depending memher, a plurality ofswinging arms carried by said last depending member in position to beengaged by said spring-pressed plunger and operative to bend the loweredge of the cap inwardly onthemovement of said spring-pressed plunger inone direction, and means for rotating said last depending member andthereby the swinging arms.

11. In a cap sealing machine, the combination of supporting means, afixed dependin member adapted to closely encircle the si e walls of acap, a spring-pressed plunger movable within said depending member andin position to engage the top ofthe cap, a slotted rotary dependingmember surrounding said fixed depending member, a plurality of swingingarms carried by said rotary depending member in position to have theupper ends thereof project through the slots of said member and engagedby said spring-pressed plunger and operative to have the lower e'ndsthereof bend the lower edge of the cap'inwardly on the movement of saidspring-pressed plunger in' one direction, and means for rotating saidrotary depending member and arms.

12. In a'cap sealing machine, the combination of supporting means, adepending member adapted to closely encircle the side walls of a jointedcap, a spring-pressed plunger therein and in position to engage the topof the cap adjacent to the upper end of said depending member, aplurality of swinging arms in position to be engaged by saidspring-pressed plunger and operative to bend the lower edge of the capinwardly on the movement of said springpressed plunger in one direction,said depending member having means adjacent to ing member, a pluralityof swinging arms carried by said last depending member in position tobeengaged by said springpressed plunger and operative to bend the loweredge of the cap inwardly on the move ment of said spring-pressed plungerin one direction, said first depending member having means adjacent tothe lower edge thereof for engaging the joint of the cap.

14:. In a cap sealing machine, the combination of supporting means, adepending member adapted to closely encircle the side 'walls of ajointed cap, a spring-pressed plunger therein and in posit1on to engagethe top of thecap adjacent to the upper end of said depending member, aplurality of swinging arms in position to be engaged by saidspring-pressed plunger and operative to bend the lower edge ofthe caplll,

wardly on the movement of said springpressed plunger in one direction,means for rotating said swinging arms, said depending member havingmeans adjacent to the lower edge thereof for engaging the joint of thecap.

Signed at New York city, N. Y., on June 23rd, 1920.

' CHARLES HAMMER.

